Peeey huntley



UNITED STATES PATENT ()FFICE.

PERRY HUNTLEY, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO C. S. LEET, OF SAME PLACE.

BENCH-VISE.

EPECIPICATION forming part of Letters Patent No. 340,947, dated April 27, 1886.

Application filed March 5, 1884. Serial No. 123,063. (No model.) I

To all whom, it may concern.-

Be it known that I, PERRY HUNTLEY, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Bench-Vises; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain novel and useful improvements in benclrvises, and has for its object to provide a device of this description in which the movable jaw may be arranged to slide, so as to accommodate large work without the tedious operation of being brought into the required position by the manipulation of the ordinary screw, while at the same time said jaw may, if desired, be operated by the screw; and with these ends in view my invention consists in the details of construction and combination of elements hereinafter fully and in detail explained, and then specifically designated by the claims.

In orderthat those skilled in the art to which my invention appertains may more fully un derstand its construction and operation, I will proceed to describe the same in detail, referring by letter to the accompanying drawings, forming apart of this specification, in which- Figure l is a side elevation of a vise embodying my improvements with the body and slide partially broken away and sectioned, and Fig. 2 a crosssection taken at the line or 00 of Fig. 1.

Similar letters denote like parts in both figures of the drawings.

A is the bench or table, and B the visebody, bolted or similarly secured thereto, and having cast therewith the stationary jaw C. The vise-body is open at the bottom, and adapted to receive and support the slide D, arranged interiorly thereof, as shown at Fig. 2.

E is the movable jaw, castintegral with said slide, and F the ordinary operating-screw.

G are sections of a not adapted to close upon the screw, as will be presently explained. These sections are each pivoted between lugs H, projecting upward from the lower portion of the vise-body, and have heel ends I extending beyond said pivotal points.

J is a lever, pivoted between ears K, depending from the vise-body in such manner that the upper extremity of said lever will act as a cam against the heel ends of the sections G and force them upward, so that said sections will close on the screw.

The operation of my improvement is as follows: By throwing the lever upward, as shown in the drawings, it will act as a cam against the lower surfaces of the heel ends of the nutsections and cause the latter to close and engage with the screw, and the movable jaw is now operated by the action of said screw after the manner of any ordinary vise. \Vhen it is desired to accommodate large work, the lever is thrown down, and the action of the spring L, placed between the nut sections, will spread the latter apart out of engagement with the screw, and the movable jaw may now be operated with a sliding movement.

By the use of my improvement much time and labor are saved, and the method of operating the movable jaw is readily changed from the action of the ordinary screw to a sliding movement, and vice versa.

I do not wish to be confined to the nut-sections pivoted independently, as shown. since they may be hinged or pivoted together at their lower extremities bya single pintle; also, I do not wish to confine myself to the exact means show u and described for opening and closing the nut'sections, the gist of my invention resting in the broad idea of a sectional nut adapted to be thrown into and out of engage ment with the screw.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a vise of the character described, the combination, with the stationary jaw, m0vable jaw, and operatingscrew, of a sectional nut pivoted within the stationary jaw and adapted to engage and be disengaged from said screw, substantially as set forth.

2. In a vise of the character described, the combination, with the screw, of a nut made in two parts, both of which are movable and pivoted within the vise-body, substantially as set forth.

3. In combination with the two movable parts of the nut, as described, a lever adapted to act as a cam against the lower extremities of the parts of said nut and cause the latter to close, substantially as shown and described.

In testimony whereof I affix my signature in presence of two witnesses. I

Witnesses: PERRY HUNTLEY.

S. S. WILLIAMSON, W. J. HAVILAND. 

